//TODO
})
.put('/users/:id', async (ctx,next) => {
//TODO
})
.del('/users/:id', async (ctx,next) => {
//TODO
});
自动扫描controller包实现方法如下
const fs = require('fs');
const router = require('koa-router')();function addMapping(router, mapping) {
for (var url in mapping) {
if (url.startsWith('GET ')) {
var path = url.substring(4);
router.get(path, mapping[url]);
console.log(`register URL mapping: GET ${path}`);
} else if (url.startsWith('POST ')) {
var path = url.substring(5);
router.post(path, mapping[url]);
console.log(`register URL mapping: POST ${path}`);
} else if (url.startsWith('PUT ')) {
var path = url.substring(4);
router.put(path, mapping[url]);
console.log(`register URL mapping: PUT ${path}`);
} else if (url.startsWith('DELETE ')) {
var path = url.substring(7);
router.del(path, mapping[url]);
console.log(`register URL mapping: DELETE ${path}`);
} else {
console.log(`invalid URL: ${url}`);
}
}
}
function addControllers(router, dir) {
fs.readdirSync(__dirname + '/' + dir).filter((f) => {
return f.endsWith('.js');
}).forEach((f) => {
console.log(`process controller: ${f}...`);
let mapping = require(__dirname + '/' + dir + '/' + f);
addMapping(router, mapping);
});
}
module.exports = function (dir) {
var controllersDir = dir || 'controller';
addControllers(router, controllersDir);
return router.routes();
};
2.4. 控制器
[userController.js]***Controller.js是用来处理具体请求信息以及返回数据的，userController.js中处理了GET请求获取用户信息，POST请求保存用户信息
const userService = require('./../service/userService.js');var getUserinfo = (ctx, next) => {
let query = ctx.query;
let userId = query.id;
let userInfo = userService.getUserById(userId);
let html = '<html><body>'
+ '<div> userinfo: ' + userInfo + '</div>'
+ '</body></html>';
ctx.response.type ='text/html';
ctx.response.body = html;
};
var saveUserinfo = (ctx, next) => {
const requestString = ctx.data;
//TODO数据处理
Console.log(requestString);
};
module.exports = {
'GET /getUserinfo': getUserinfo,
'POST /saveUserinfo': saveUserinfo
};
2.5. 数据处理
[userService.js]处理封装从***Dao.js获取到的数据返回给Controller
const userDao = require('./../dao/userDao.js');var getUserById = async (userId) => {
